MAYONAISE

Tori
so for a little while I've been craving a nice, cheese, ham, & mayo sandwich. 
BUT I've read that you shouldn't eat MAYONAISE because some do have eggs in it and to be careful because of the ham or whatever but I'm just seeing on here who still eats it and had no problems? I know some people over exaggerate but I really want this sandwich!!!! 9 weeks +1 btw.